diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index da715a9c..ecf0594e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,14 +17,14 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
         allow-prereleases: true
diff --git a/setup.py b/setup.py
index f7e89bf8..54c7e9d3 100644
--- a/setup.py
+++ b/setup.py
@@ -58,6 +58,7 @@ def make_release_tree(self, basedir, files):
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',
+        'Programming Language :: Python :: 3.13',
     ],
     python_requires=">=3.8",
     packages=['pycparser', 'pycparser.ply'],